Function tryAdaptCheckBox

pj_dialog_host/src/widget_adapters.cpp:419–459

Replace a plain QCheckBox with a labelled ToggleSwitch (label on the LEFT, switch on the right). The checkbox is kept hidden+alive so plugin data and the connectWidgetSignals event callback keep flowing through it; the toggle just drives it. No-op for tristate / textless / composite-internal / already adapted checkboxes.

// just drives it. No-op for tristate / textless / composite-internal / already
// adapted checkboxes.
static bool tryAdaptCheckBox(QCheckBox* checkbox) {
  if (checkbox == nullptr || pairedToggleSwitch(checkbox) != nullptr) {
    return false;
  }
  if (checkbox->isTristate() || checkbox->text().isEmpty()) {
    return false;
  }
  QWidget* parent = checkbox->parentWidget();
  if (parent == nullptr || parent->layout() == nullptr || isInsideHostComposite(checkbox)) {
    return false;
  }

  auto* toggle = new ToggleSwitch(parent);
  toggle->setText(checkbox->text());
  toggle->setLabelSide(ToggleSwitch::LabelSide::Left);
  toggle->setToolTip(checkbox->toolTip());
  toggle->setEnabled(checkbox->isEnabled());
  toggle->setChecked(checkbox->isChecked(), /*animate=*/false);

  if (!replaceWidgetInLayout(parent, checkbox, toggle)) {
    delete toggle;
    return false;
  }
  checkbox->setProperty(kToggleSwitchProperty, QVariant::fromValue<QObject*>(toggle));
  checkbox->setProperty(kToggleDesiredVisibleProperty, !checkbox->isHidden());
  toggle->setProperty(kToggleCheckBoxProperty, QVariant::fromValue<QObject*>(checkbox));
  checkbox->hide();

  const QPointer<QCheckBox> cb_ptr(checkbox);
  QObject::connect(toggle, &ToggleSwitch::toggled, toggle, [cb_ptr](bool checked) {
    if (cb_ptr != nullptr) {
      cb_ptr->setChecked(checked);
    }
  });
  QObject::connect(checkbox, &QCheckBox::toggled, toggle, [checkbox, toggle](bool checked) {
    const QSignalBlocker blocker(toggle);
    toggle->setChecked(checked, /*animate=*/false);
    checkbox->hide();
  });
  return true;
}

// --- QTableView interior-only cell grid --------------------------------------